Home / 495,347.28-683,581.88-280,529.16

Finding the Fourth Proportional to 495,347.28, 683,581.88 and 280,529.16

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Solution

The fourth proportional to 495,347.28, 683,581.88 and 280,529.16 is: 387,131.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,347.28 : 683,581.88 = 280,529.16 : x
  2. Step 2: Convert to fraction form
    495,347.28/683,581.88 = 280,529.16/x
  3. Step 3: Cross multiply
    495,347.28x = 683,581.88 × 280,529.16
  4. Step 4: Simplify right side
    495,347.28x = 191,764,650,587.62
  5. Step 5: Solve for x
    x = 191,764,650,587.62/495,347.28
  6. Step 6: Final answer
    x = 387,131.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.